When the concrete was poured, the finished steel bars were not protected, and there were no dedicated personnel to monitor and organize them, which posed serious quality risks.
When the joints of the concrete walls in the basement were poured without grouting, obvious cold joints appeared, forming water seepage channels, which are prone to water seepage.
The additional layer was burned through, affecting the waterproof performance
The concrete top of the wall was not vibrated, resulting in a large number of voids, exposed tendons, and loose concrete.
When opening wire ducts in a brick wall, rough construction penetrates the wall and interrupts the wall tie bars, which can easily cause cracks in the wall
The base oil is unevenly applied, affecting the bonding of the membrane.
There are cracks in the positive corners of the overhanging board, mainly in the upper ribs of the board. Reason: The protective layer is not enough, only 12.5px, and the maintenance is poor.
Pumped concrete has no surface and causes dryness and cracking.
is so concrete! The
specification stipulates that the width of the additional layer is 250mm. The width of most additional layers during the construction of this project is only 150-180mm.
The steel bars of the columns were poorly tied and no attention was paid to the protection of the finished products, which caused a lot of damage and seriously affected the quality of the project.
The steel bar cutting list was not approved before processing. During processing, a large number of stirrups finished products were not up to standard and could not be used in the project, causing serious losses.
The embedded pipe was wrong and was picked and chiseled randomly afterwards, causing cracks and water seepage in the cast-in-place slab.
The internal insulation of the exterior wall polystyrene board is fragmented and seriously polluted, which can easily cause condensation on the wall and other problems.
The wall is cracked.
For openings with a diameter greater than 800 mm, lintels should be added up and down according to the specification requirements, and concealed columns should be added on both sides for reinforcement. The picture shows a circular beam without openings.
The garbage in the cast-in-place concrete slab cannot be cleaned.
Car pumps are stacked around the foundation pit, and no one is managing it.
causes the cement pavement in the foundation pit to crack.
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